./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-data-race.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_tso.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 15:10:56,183 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 15:10:56,228 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2024-10-24 15:10:56,231 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 15:10:56,232 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 15:10:56,247 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 15:10:56,248 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 15:10:56,248 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 15:10:56,248 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 15:10:56,249 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 15:10:56,249 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 15:10:56,249 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 15:10:56,249 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 15:10:56,250 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 15:10:56,250 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 15:10:56,250 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 15:10:56,250 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 15:10:56,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 15:10:56,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 15:10:56,253 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 15:10:56,254 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 15:10:56,257 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 15:10:56,257 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2024-10-24 15:10:56,258 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 15:10:56,258 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 15:10:56,258 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 15:10:56,258 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 15:10:56,258 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 15:10:56,259 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 15:10:56,259 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 15:10:56,259 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 15:10:56,259 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:10:56,259 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 15:10:56,260 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 15:10:56,260 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 15:10:56,261 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 15:10:56,261 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 15:10:56,262 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 15:10:56,262 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 15:10:56,262 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 15:10:56,263 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 15:10:56,263 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 19245e5542f28ce8a07a1858e0d4c05190b543a3d82e804c6a4eebc044c13d81 [2024-10-24 15:10:56,505 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 15:10:56,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 15:10:56,528 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 15:10:56,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 15:10:56,529 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 15:10:56,530 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_tso.i [2024-10-24 15:10:57,803 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 15:10:58,136 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 15:10:58,137 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix023_tso.i [2024-10-24 15:10:58,153 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ef931e37/2ac7e87494cc4a22815aec14f43733d7/FLAG5af4c39fc [2024-10-24 15:10:58,466 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ef931e37/2ac7e87494cc4a22815aec14f43733d7 [2024-10-24 15:10:58,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 15:10:58,469 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 15:10:58,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 15:10:58,471 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 15:10:58,484 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 15:10:58,485 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:10:58" (1/1) ... [2024-10-24 15:10:58,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4672c6b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:58, skipping insertion in model container [2024-10-24 15:10:58,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 03:10:58" (1/1) ... [2024-10-24 15:10:58,527 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 15:10:58,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:10:58,935 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 15:10:59,054 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 15:10:59,094 INFO L204 MainTranslator]: Completed translation [2024-10-24 15:10:59,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59 WrapperNode [2024-10-24 15:10:59,095 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 15:10:59,096 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 15:10:59,097 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 15:10:59,097 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 15:10:59,103 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,136 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,247 INFO L138 Inliner]: procedures = 176, calls = 57, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 2855 [2024-10-24 15:10:59,247 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 15:10:59,248 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 15:10:59,248 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 15:10:59,248 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 15:10:59,256 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,257 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,326 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,336 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,347 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,365 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 15:10:59,367 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 15:10:59,367 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 15:10:59,367 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 15:10:59,368 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (1/1) ... [2024-10-24 15:10:59,372 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 15:10:59,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 15:10:59,396 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 15:10:59,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 15:10:59,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-24 15:10:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 15:10:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-24 15:10:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-24 15:10:59,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-24 15:10:59,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-24 15:10:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-24 15:10:59,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-24 15:10:59,440 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2024-10-24 15:10:59,440 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2024-10-24 15:10:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-24 15:10:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-24 15:10:59,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 15:10:59,441 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 15:10:59,444 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-24 15:10:59,696 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 15:10:59,697 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 15:11:02,142 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-24 15:11:02,143 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 15:11:18,592 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 15:11:18,593 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-24 15:11:18,593 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:18 BoogieIcfgContainer [2024-10-24 15:11:18,593 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 15:11:18,595 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 15:11:18,597 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 15:11:18,600 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 15:11:18,600 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 03:10:58" (1/3) ... [2024-10-24 15:11:18,601 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8ba016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:18, skipping insertion in model container [2024-10-24 15:11:18,601 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 03:10:59" (2/3) ... [2024-10-24 15:11:18,602 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d8ba016 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 03:11:18, skipping insertion in model container [2024-10-24 15:11:18,603 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 03:11:18" (3/3) ... [2024-10-24 15:11:18,604 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_tso.i [2024-10-24 15:11:18,619 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 15:11:18,619 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 669 error locations. [2024-10-24 15:11:18,620 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-24 15:11:19,327 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-24 15:11:19,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 830 places, 820 transitions, 1656 flow [2024-10-24 15:11:19,842 INFO L124 PetriNetUnfolderBase]: 3/816 cut-off events. [2024-10-24 15:11:19,842 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:11:19,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 829 conditions, 816 events. 3/816 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 6586 event pairs, 0 based on Foata normal form. 0/144 useless extension candidates. Maximal degree in co-relation 760. Up to 2 conditions per place. [2024-10-24 15:11:19,884 INFO L82 GeneralOperation]: Start removeDead. Operand has 830 places, 820 transitions, 1656 flow [2024-10-24 15:11:19,957 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 826 places, 816 transitions, 1644 flow [2024-10-24 15:11:19,968 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 15:11:19,974 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@18ce6b12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 15:11:19,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1087 error locations. [2024-10-24 15:11:19,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-24 15:11:19,984 INFO L124 PetriNetUnfolderBase]: 0/64 cut-off events. [2024-10-24 15:11:19,984 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-24 15:11:19,984 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:11:19,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:11:19,985 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 1083 more)] === [2024-10-24 15:11:19,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:11:19,991 INFO L85 PathProgramCache]: Analyzing trace with hash -2069319239, now seen corresponding path program 1 times [2024-10-24 15:11:19,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:11:19,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833739389] [2024-10-24 15:11:19,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:11:20,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:11:20,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:11:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:11:20,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:11:20,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833739389] [2024-10-24 15:11:20,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833739389] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:11:20,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:11:20,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-24 15:11:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898344369] [2024-10-24 15:11:20,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:11:20,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 15:11:20,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:11:20,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 15:11:20,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 15:11:20,365 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 124 out of 820 [2024-10-24 15:11:20,370 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 826 places, 816 transitions, 1644 flow. Second operand has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:11:20,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:11:20,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 124 of 820 [2024-10-24 15:11:20,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-24 15:12:02,727 INFO L124 PetriNetUnfolderBase]: 11279/30847 cut-off events. [2024-10-24 15:12:02,728 INFO L125 PetriNetUnfolderBase]: For 186/186 co-relation queries the response was YES. [2024-10-24 15:12:02,829 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46289 conditions, 30847 events. 11279/30847 cut-off events. For 186/186 co-relation queries the response was YES. Maximal size of possible extension queue 1243. Compared 386692 event pairs, 11279 based on Foata normal form. 2642/31489 useless extension candidates. Maximal degree in co-relation 46218. Up to 15065 conditions per place. [2024-10-24 15:12:02,943 INFO L140 encePairwiseOnDemand]: 150/820 looper letters, 25 selfloop transitions, 0 changer transitions 0/144 dead transitions. [2024-10-24 15:12:02,943 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 144 transitions, 350 flow [2024-10-24 15:12:02,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 15:12:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-10-24 15:12:02,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 943 transitions. [2024-10-24 15:12:02,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575 [2024-10-24 15:12:02,962 INFO L175 Difference]: Start difference. First operand has 826 places, 816 transitions, 1644 flow. Second operand 2 states and 943 transitions. [2024-10-24 15:12:02,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 144 transitions, 350 flow [2024-10-24 15:12:02,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 144 transitions, 346 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-24 15:12:02,967 INFO L231 Difference]: Finished difference. Result has 154 places, 144 transitions, 296 flow [2024-10-24 15:12:02,969 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=820, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=296, PETRI_PLACES=154, PETRI_TRANSITIONS=144} [2024-10-24 15:12:02,972 INFO L277 CegarLoopForPetriNet]: 826 programPoint places, -672 predicate places. [2024-10-24 15:12:02,972 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 144 transitions, 296 flow [2024-10-24 15:12:02,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 125.0) internal successors, (250), 2 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:12:02,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-24 15:12:02,973 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 15:12:02,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 15:12:02,973 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [P0Err0ASSERT_VIOLATIONDATA_RACE, P0Err1ASSERT_VIOLATIONDATA_RACE, P0Err2ASSERT_VIOLATIONDATA_RACE, P0Err3ASSERT_VIOLATIONDATA_RACE (and 1083 more)] === [2024-10-24 15:12:02,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 15:12:02,974 INFO L85 PathProgramCache]: Analyzing trace with hash 244967505, now seen corresponding path program 1 times [2024-10-24 15:12:02,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 15:12:02,974 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349590272] [2024-10-24 15:12:02,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 15:12:02,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 15:12:03,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 15:12:03,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 15:12:03,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 15:12:03,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349590272] [2024-10-24 15:12:03,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349590272] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 15:12:03,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 15:12:03,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 15:12:03,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839595953] [2024-10-24 15:12:03,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 15:12:03,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 15:12:03,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 15:12:03,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 15:12:03,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 15:12:03,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 820 [2024-10-24 15:12:03,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 144 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 15:12:03,101 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-24 15:12:03,101 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 820 [2024-10-24 15:12:03,101 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand